<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="阶段" prop="stage">
        <el-input
          v-model="queryParams.stage"
          placeholder="请输入阶段"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="面试题内容" prop="question">
        <el-input
          v-model="queryParams.question"
          placeholder="请输入面试题内容"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="知识点" prop="knowledgePoint">
        <el-input
          v-model="queryParams.knowledgePoint"
          placeholder="请输入知识点"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item label="重要性" prop="importance">
        <el-input
          v-model="queryParams.importance"
          placeholder="请输入重要性"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['teaching:interview:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['teaching:interview:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['teaching:interview:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['teaching:interview:export']"
        >导出</el-button>
      </el-col>
<!--      <el-col :span="1.5">-->
<!--        <el-button-->
<!--          type="warning"-->
<!--          plain-->
<!--          icon="el-icon-download"-->
<!--          size="mini"-->
<!--          @click="handleExportEs"-->
<!--          v-hasPermi="['teaching:interview:export']"-->
<!--        >全量同步到es</el-button>-->
<!--      </el-col>-->
<!--      <el-col :span="4" >-->
<!--        <el-progress :percentage="percentage" v-show="percentage!==0"></el-progress>-->
<!--      </el-col>-->
<!--      <el-col :span="4">-->
<!--      <el-progress :text-inside="true" :stroke-width="26" :percentage="percentage" v-show="percentage!==0"></el-progress>-->
<!--      </el-col>-->

      <el-col :span="4">
        <!-- 在工具栏中添加导出按钮和进度条 -->
        <el-button
          type="primary"
          icon="el-icon-upload2"
          size="mini"
          @click="handleExportToES"
          :loading="exporting"
          v-hasPermi="['teaching:interview:export']"
        >全量同步导出到es</el-button>
      </el-col>
      <el-col :span="4">
        <!-- 添加进度条 -->
        <el-progress
          v-if="exporting"
          :percentage="exportProgress"
          :format="p => p + '%'"
          status="success"
          style="margin-top: 10px;"
        ></el-progress>
      </el-col>


      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="interviewList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="面试题ID" align="center" prop="id" />
      <el-table-column label="阶段" align="center" prop="stage" />
      <el-table-column label="面试题内容" align="center" prop="question" />
      <el-table-column label="答案" align="center" prop="answer" />
      <el-table-column label="知识点" align="center" prop="knowledgePoint" />
      <el-table-column label="重要性，1-一般,2-重要,3-非常重要" align="center" prop="importance" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-edit"
            @click="handleUpdate(scope.row)"
            v-hasPermi="['teaching:interview:edit']"
          >修改</el-button>
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['teaching:interview:remove']"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加或修改高频面试题对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="阶段" prop="stage">
          <el-input v-model="form.stage" placeholder="请输入阶段" />
        </el-form-item>
        <el-form-item label="面试题内容" prop="question">
          <el-input v-model="form.question" placeholder="请输入面试题内容" />
        </el-form-item>
        <el-form-item label="答案" prop="answer">
          <el-input v-model="form.answer" type="textarea" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="知识点" prop="knowledgePoint">
          <el-input v-model="form.knowledgePoint" placeholder="请输入知识点" />
        </el-form-item>
        <el-form-item label="重要性，1-一般,2-重要,3-非常重要" prop="importance">
          <el-input v-model="form.importance" placeholder="请输入重要性，1-一般,2-重要,3-非常重要" />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { queryPercentage, exportEs, listInterview, getInterview, delInterview, addInterview, updateInterview } from "@/api/teaching/interview";
import {EventSourcePolyfill} from 'event-source-polyfill'
import {getToken} from "@/utils/auth";

export default {
  name: "Interview",
  data() {
    return {
      // 进度条模型数据
      exportProgress: 0,
      sseSource: null,
      exporting: false,
      percentage: 0,

      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 高频面试题表格数据
      interviewList: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        stage: null,
        question: null,
        answer: null,
        knowledgePoint: null,
        importance: null,
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        stage: [
          { required: true, message: "阶段不能为空", trigger: "blur" }
        ],
        question: [
          { required: true, message: "面试题内容不能为空", trigger: "blur" }
        ],
        importance: [
          { required: true, message: "重要性，1-一般,2-重要,3-非常重要不能为空", trigger: "blur" }
        ],
      }
    };
  },
  created() {
    this.getList();
  },
  methods: {
    /**全量同步到es*/
    // 导出到ES
    handleExportToES() {
      this.exporting = true;
      this.exportProgress = 0;
      this.$confirm('是否全量同步到es?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        //ajax 请求服务器接口开始做全量同步
        exportEs().then(resp => {
          this.$modal.msgSuccess("导出任务已启动");
          // 连接SSE获取进度
          setTimeout(() => {
            this.connectProgressSSE();
          }, 3000);
        }).catch(err => {
          this.exporting = false;
          this.$message({
            type: 'error',
            message: '同步失败!'
          });
        })
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消同步'
        });
      });
    },
    // 连接SSE获取进度
    connectProgressSSE() {
      // 关闭已有连接
      if (this.sseSource) {
        this.sseSource.close();
      }
      // 创建新连接
      this.sseSource = new EventSourcePolyfill(process.env.VUE_APP_BASE_API + "/teaching/interview/export/es/progress/sse", {headers: {'Authorization': `Bearer ${getToken()}`}});
      // 监听进度消息
      this.sseSource.addEventListener('progress', (event) => {
        this.exportProgress = JSON.parse(event.data);
        // 如果进度完成，关闭连接
        if (this.exportProgress >= 100) {
          this.exporting = false;
          this.sseSource.close();
          this.sseSource = null;
          this.$message({
            type: 'success',
            message: '导出成功!'
          });
        }
      });
      // 监听错误
      this.sseSource.onerror = () => {
        this.exporting = false;
        this.sseSource.close();
        this.sseSource = null;
        this.$message({
          type: 'error',
          message: '获取进度失败!'
        });
      };
    },
    /*handleExportEs(){
      exportEs().then(resp=>{
        this.percentage = 0;
        this.$message.success("全量同步到es成功");
      }).catch(err=>{
        this.$message.error(err);
      });
      this.percentage = 1;

      //定时任务（每2秒刷新一次进度条）
      let task = setInterval(()=>{
        queryExportEsProgress().then(resp=>{
          if (this.percentage === 100) {
            //清除任务
            clearInterval(task);
          }
          this.percentage = resp.data;
        }).catch(err=>{
          //清除任务
          clearInterval(task);
        })
      },2000);
    },*/
    // handleExportEs(){
    //   this.$confirm('是否全量同步到es?', '提示', {
    //     confirmButtonText: '确定',
    //     cancelButtonText: '取消',
    //     type: 'warning'
    //   }).then(() => {
    //
    //     //ajax 请求服务器接口开始做全量同步
    //     exportEs().then(resp=>{
    //        定时查询进度条
    //         let task = setInterval(()=>{
    //           queryPercentage().then(resp=>{
    //             this.percentage = resp.data;
    //             if(resp.data==100){
    //               clearInterval(task);
    //             }
    //           })
    //         },2000);
    //
    //        this.$message({
    //         type: 'success',
    //         message: '同步成功!'
    //       });
    //     }).catch(err=>{
    //       this.$message({
    //         type: 'error',
    //         message: '同步失败!'
    //       });
    //     })
    //
    //
    //   }).catch(() => {
    //     this.$message({
    //       type: 'info',
    //       message: '已取消同步'
    //     });
    //   });
    // },
    /** 查询高频面试题列表 */
    getList() {
      this.loading = true;
      listInterview(this.queryParams).then(response => {
        this.interviewList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        stage: null,
        question: null,
        answer: null,
        knowledgePoint: null,
        importance: null,
        createBy: null,
        createTime: null,
        updateBy: null,
        updateTime: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length!==1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加高频面试题";
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset();
      const id = row.id || this.ids
      getInterview(id).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改高频面试题";
      });
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.id != null) {
            updateInterview(this.form).then(response => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addInterview(this.form).then(response => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除高频面试题编号为"' + ids + '"的数据项？').then(function() {
        return delInterview(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    /** 导出按钮操作 */
    handleExport() {
      this.download('teaching/interview/export', {
        ...this.queryParams
      }, `interview_${new Date().getTime()}.xlsx`)
    }
  }
};
</script>
